Hi,
Using sage-2.9.3, on Debian Etch on a core duo machine.
According to the sage tutorial p.67 section 5.3 Standalone Python/Sage
Scripts, i tried to run such a script called BMV.sage:

#!/usr/bin/env sage -python
import sys

$ ./BMV.sage
/usr/bin/env: sage -python: file or directory not found

though
$ /usr/bin/env sage -python
brings me to the python command line, i.e. this works.

changing the file BMV.sage to:

#!/path/to/sage/sage -python
import sys

shows strange behaviour:
if i run this script, nothing happens, just the mouse pointer changes
(into a cross), clicking the mouse button (left or right) brings back
the shell command line prompt, no output at all...., and the mouse
pointer turns to normal again...

runnin the script:

#!/path/to/sage/sage -python
a = "Hello"

outputs
./BMV.sage: line 2: a: command not found

the script from the tutorial, literally:

#!/home/georg/Daten/.System/bin/sage/sage -python
import sys
from sage.all import *
if len(sys.argv) != 2:
   print "Usage: %s <n>"%sys.argv[0]
   print "Outputs the prime factorization of n."
   sys.exit(1)
print factor(sage_eval(sys.argv[1])

gives the following output, as above not before clicking one of the
mouse buttons:
$ ./BMV.sage
from: can't read /var/mail/sage.all
./BMV.sage: line 4: syntax error near unexpected token `sys.argv'
./BMV.sage: line 4: `if len(sys.argv) != 2:'

additionally there is a file called 'sys' created in the directory of
BMV.sage, this is to long to post it here, the beginning is

%!PS-Adobe-3.0
%%Creator: (ImageMagick)
%%Title: (sys)
%%CreationDate: (Tue Jan 15 18:43:48 2008)
%%BoundingBox: 0 0 897 433
%%HiResBoundingBox: 0 0 897 433
%%DocumentData: Clean7Bit
%%LanguageLevel: 1
%%Orientation: Portrait
%%PageOrder: Ascend
%%Pages: 1
%%EndComments
.....

thanks for help, Georg
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